Window-screen.



W. A. SANDERS.

WINDOW SCREEN.

APPLIGATIONVFILED FEB. 18, 1914.

:LJLQZQQn Patented Feb.2,1915.

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WINDOW SCREEN.

APPLICATION TILED FEB.1B, 1914.

1,127,280 M Patented Feb. 2, 1915.

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WINDOW-SCREEN.

Specification of Letters Patent.

Patented Feb. 2,1915.

Application filed February 18, 1914. Serial No. 819,449.

To all whom it may concern.

Be it known that I, WERDEN A. SANDERS,

a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented new and useful Improvements in Window-Screens, of which the following is a specification.

This invention relates to window screens the window frame, and serves to equalize any irregularities in the window frame.

- In carrying out my invention, it is also my purpose to provide means for locking the screens in their normal position orin anydesired vertical adjusted position.

I further aim to provide a screen including a frame constructed preferably of metal and so formed as to provide a tight joint between the adjacent rails of the upper and lower screens when the latter are normally Another object of the invention is to provide a screen. of the above mentioned character which may be readily and easily applied to or removed from a window frame when desired.

Other objects. and advantageswill appear from the following description. of the invention, the latter residing in the specific construction, combination and arrangement of parts-hereinafter more fully described.

A practical embodiment of the invention is shown in the drawings forming a part of rthis application, and in which like numerals of reference indicate similar parts in the several views.

Figure 1 is a front elevation of my improved screen in use. Fig. 2 is a horizontal sectional view taken on line 2 2 of' F1g. 1. Fig. 3 is an enlarged vertlcal sect onal View of the side members of the screen frame. Fig. 4 is an enlarged sectional view taken on line 44 of Fig. 3. Fig. 5 is a similar View showing the cam in inoperative position, and the manner of removing the screen. Fig. 6 is a. sectional view taken on line 66 of Fig. 1. Fig. 7 is a similar yiew taken on line 77 of Fig. 1. Fig. 8 1s a detail section of a modified i'orm.

Referring more particularly to the drawings A designates the window casing provided with the usual blind stopB to which l are secured in any suitable manner the tracks 5, whlchextend throughout the entire length of the stop and upon which the "screens are adapted for slidable adjustment.

In the preferred embodiment of the inven- I tion, the tracks are of substantially U-form and are permanently secured to the blind stops B in the manner shown. The side members 8 and 9 of the tracks are adapted to shdably receive the upper and lower screen 10 and 11 respectively, whereby the latter may be raised and lowered to any desired adjusted position. The upper and lower screens are similarly constructed with the exceptlon of the adjacent or meetin rails thereof which are especially formed to provide a tlght oint therebetwee'n when the screens are normally disposed and which will hereafter be more fully described.

Each screen comprises a sheet of suitable foraminous material and a frame which may be constructed from any suitable material, preferably metalv The side rails 12 of each screen comprise inner and outer telescopic sections'13 and 14 respectively; The outer sect1ons ltare formed from a single sheet .of metal and comprises short wall 15 and a relatively long wall 16 disposed in arallelism with the said short wall an connected therewith by the end walls 17. The end walls 17 are formed to provide inwardly disposed channels 18 which slidably receive the side members 8 and 9 respectively of the tracks 5 for the purpose hereinabove set forth. Thevinnersections' 13 which are also formed from a single sheet of metal which is bent to provide spaced parallel walls 19 and 20 defining a channel by the intervening space therebetween in which the said short wall 15 of the outer section outer section to: telescope within the said inner section. The walls 20 are bent at their outer edge as at 21 and are extended inwardly to provide a wall 22 disposed in .is slidably mounted, thus permitting the spaced parallelism with the wall 20, and

as shown the mar 'nal edge of the foraminous material is e ectively clamped between these walls. The innerjedge of the wall 22 is bent upon itself to provide an outwardly extending flange 23 against which is adapted to abut the inwardly extending flange 24: formed lay-bending the free'edges of the wall 16, the latter serving in the capacity of a stop tolimit the movement of the outer section in one direction, on relative lateral extension of the latter.

'lheupper rail 25 of the upper screen and the lower rail 26 of the lower screen are similarly constructed as clearly indicated in Fig. 7. These rails are constructed from a single sheet of metal into substantially U-form between the parallel walls 27 and 28 of which the marginal edges-of the foraminous material are suitably secured.

The outer wall .28 of each rail is bent adjaeent its upper and lower edges to form spaced reinforcing beads which extend across the entirev width of the rail, and these beads'serveasfinger holds for raising and lowering the screens.

The upper rail 29 of the lower screen is of substantially inverted U-shaped for1nation, and between the walls of which I the upper marginal edge ofthe foraminous material is secured in any suitable manner.

The outer wall 30 of the rails is formed with a reinforcing bead 31 ad acent its lower edge,

The lower rail of the upper screen com.

prises an inner member 32 and an outer member 33rbetween which the toramlnous material is clamped by suitable fastening elements'34 retaining the members con:

nected. T he inner member 32 is formed a d jacent its upper'edge with aninwardly (heposed reinforcing bead 35, while the outer member 33 terminates at its lower edge to provide an inwardly extending bulged portion 36 adapted to normally contact the wall 37 of the rail 29 to form a tight joint 4 between the parts when the screens are norfest that the spring not only operatesto.

normally retain the sections yieldably extended. but further serves to equalize any irregularities in the window frame.

With the structure hereinabove described, I employ a locking means for locking the screens in either their normal position or in any desired vertical adjusted position.' This means as shown in one embodiment of the invention consists of pins 39 mounted for rotation in the walls :20 and 22 of the inner section 14, and each pin carries at its forward end a cam 40 which cams are adapted when in operative position to bear against the walls 41 of the channels 18, thus serving to hold the screen immovably positioned in the window frame. The forward ends of the pins are provided with slots 42 for the reception of a suitable key for rotating the pins to move the cams intooperative or inoperative position.

The front walls 16 of the outer sections are provided with suitable openings to permit the key to be inserted therethrough into engagement with the pins. As will be noted the cams are so arranged that the screens will be effectively locked'at each of the four inventionthe track 42 which is U-shaped in formation is connected. with a yieldable supported plate 43. The plate issubstantiaily L-shaped, the portion 44 of which slidably engages the outer surface of the blind stop B, and is connected therewith by means of a I fastening element 45 in the manner shown.

interposed between the blind stop 13 and the portion l? of the supporting plate, and operates to yieldably support the track 42 in .A spring 46 encircles the element 45 and is spaced relation to the window frame. Mani- I festly by reason of this construction and arrangement the track 42, exerts an inward pressure against the screen while the telescopic sections of the latter exert an outward pressure againstthe track, and thus the screens are etl'ectively'held in normal position or in any desired adjusted position without the use of the locking earns 40.

It will be further obvious that the application of screens, constructed in accordance with my invention, to a window frame and their removal therefrom is greatly facilitated. V

From the foregoing description considered in connection with the accompanyingdrawings it is believed that the nature and advantages of the invention will 'be tl'ioroughly understood, and while I have shown what I now consider a practical embodiment of the invention, the same is merely illustrative, it being desired to have it understood that various changes in the construction and arrangement of parts maybe made within the scope of the appended claims.

What I claim is: 1. In combination, an upper and lower vertically adjustable screen including metallic frames, the lower and upper rail of the respective screens being substantially U- shaped and provided with laterally disposed reinforcing beads, said lower rail being formed with an inwardly disposed bulged portion for contact with said aipper rail to form a tight joint between the parts.

2. In a window screen, a frame, the side members of said frame comprising laterally movable telescopic sections, means for normally extending said sections, and coopercontact with each other to limit the'movement of the telescopic sections in one direction.

3. In a window screen, a frame including laterally movable telescopic sections means for yieldingly supporting said sections normally extended, and means for locking the sections in said extended position.

4. In a window screen, a frame lncluding' laterally movable telescopic sections, means for yieldingly' supporting said sections normally extended, means for locking the sections in said extended position, said means comprising cams mounted for-rotation between said sections and adapted to bear against the side wall of one of said sections in operative position. V

5. A track for window screens comprising an L-shaped plate, a substantially U-shaped track member mounted on the short arm of 7 said plate, an element fastened on the winating flanges formed on the sections for' dow frame and adapted to slidably receive the short arm of said plate and said track,

and a spring interposed between the frame and said short arm of the plate for yieldingly supporting said tratilc for horizontal i movement.

Intestimony whereof I affix my signature in presence of two witnesses.

,WERDEN A. SANDERS. Witnesses? THOMAS A. HAYES, "A. G. THOMPSON. 

